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Hydraulic Flow Meter Kit: Professional Diagnostic Case Outfits with High-Pressure Thread Adapter Fittings
Quick Answer: Silver Instruments supplies hydraulic flow meter kits in a professional diagnostic case with high-pressure thread adapter fittings. The kit fits field verification, commissioning, and troubleshooting of hydraulic circuits from DN10 to DN80. Send your flow range, pressure rating, thread standard, and fluid type for a fixed price and lead time.
Hydraulic systems fail in awkward places. A test bench is not available on a crawler crane in Ghana or a fishing vessel in Ecuador. That is why we built a portable hydraulic flow meter kit that fits into a hard diagnostic case and carries the thread adapters engineers actually need.
What the standard kit includes
The standard kit includes one flow meter body, a digital display or 4-20 mA output module, two pressure test points, a PT100 temperature sensor, and a set of high-pressure thread adapter fittings. The case has cut foam inserts for each part. Most kits ship with a rechargeable battery display or a 24 V DC loop-powered version.
The standard case weighs 8.5 kg and includes a 3 m test hose rated to 400 bar with four-layer steel braid. The display stores 200,000 data points and exports CSV files over USB. We can add a second hose for return line testing.
We have supplied kits with gear flow meters for oil and turbine flow meters for water glycol. The gear version handles 0.5 to 120 L/min. The turbine version covers 4 to 200 L/min. Accuracy is plus or minus 0.5 percent of reading for oil above 20 cSt.
High-pressure thread adapter fittings explained
Here is the thing. Thread adapters cause most field delays. Our kit includes SAE ORFS, JIC 37 degree flare, BSPP, BSPT, NPT, and DIN 2353 24 degree cone adapters. Pressure ratings go from 315 bar to 420 bar depending on size and seal. Standard material is 316L stainless steel with FKM seals. For phosphate ester fluids we supply EPDM seal kits.
Do not mix seal types on a hydraulic power unit. We have seen this on customer sites many times. A BSPP male thread with an NPT female fitting will feel tight and still leak at 200 bar. The adapter kit is labelled by thread form and seal type to avoid that mistake.
Which flow meters and systems this kit supports
The diagnostic case works with hydraulic oils, mineral oils, water glycol, and some phosphate esters. It is not for cement slurry or abrasive mine water. If your fluid has solid particles, add a strainer before the flow meter. The meter body has no moving parts on the display side but the gear set is not designed for dirty fluids.
Common pipe sizes are DN10, DN15, DN20, DN25, DN40, DN50, and DN80. For DN100 and above we supply a larger body and a separate adapter case. Tell
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Field application examples
We sold a kit to a hydraulic repair workshop in Lagos last year. They use it to test excavator attachments and steering circuits before returning machines to customers. Another customer in Oman uses the same case for flushing and verifying hydraulic power units on a desalination plant. A food processing plant in Thailand ordered the EPDM seal version for their filling machines.
Most engineers skip the temperature compensation step. In practice, oil viscosity changes a lot from 20 °C to 60 °C. Our display shows live flow, total, temperature, and pressure. That helps you compare performance at the same temperature before and after component replacement.
Ordering data and specification
When you request a quote, include your pressure in bar, temperature in °C, pipe size in DN, and flow range in L/min. Also include fluid type and viscosity in cSt. The thread standard on each test point matters. And tell us if you need ATEX Zone 1 approval or a 4-20 mA HART output for a control system.
Silver Automation Instruments keeps common adapter sets in stock for BSPP, NPT, and SAE ORFS. Custom sets for other thread forms take 5 extra working days. Standard delivery time is 7 to 12 working days after drawing approval. We ship from our warehouse in Nanjing, China to Southeast Asia, Oceania, Latin America, Africa, and the Middle East. For urgent site work we can send a partial kit by air freight. Contact Silver Instruments by Tel +86-25-68650347, WhatsApp +86-25-52155837, or WeChat +86 15365082610.
FAQ: Hydraulic Flow Meter Kit
What flow range is available for the hydraulic flow meter kit?
The standard gear flow meter covers 0.5 to 120 L/min. A turbine version covers 4 to 200 L/min. We can supply a high-flow body for DN100 lines if needed.
Can the high-pressure thread adapters fit both BSPP and NPT test points?
Yes. The kit contains separate BSPP and NPT adapters. Each adapter is marked by thread form and seal type to prevent wrong connections.
Is the diagnostic case suitable for ATEX Zone 1 areas?
We can supply the display and 4-20 mA HART output module with ATEX Zone 1 certification on request. The standard version is for safe areas only.
What fluids can this kit measure?
Hydraulic oil, mineral oil, water glycol, and some phosphate esters. For water-based fluids above 80 percent water content we recommend a turbine body and EPDM seals.
How do I order a kit for a specific pipe size and pressure?
Send us the pipe size in DN, the thread standard, the maximum working pressure in bar, and the fluid viscosity in cSt. We will return a layout and price.
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